This update addresses six remote code execution vulnerabilities. The security update addresses these vulnerabilities by modifying the way that Internet Explorer handles the error resulting in the exploitable condition. For detailed information on the contents of this update, please see the following documentation:

This security update is rated Critical for all supported versions of Internet Explorer. This security update is also available for Internet Explorer 8 Beta 1 for Developers on Windows Update.

IE security updates are cumulative and contain all previously released updates for each version of Internet Explorer.

I encourage everybody to download this security update and other non-IE security updates via Windows Update or Microsoft Update. Windows users are also strongly encouraged to configure their systems for automatic updates to keep their systems current with the latest updates from Microsoft.